From fe43453f47c9581bce570a5ede6625ef82ab0a2d Mon Sep 17 00:00:00 2001
From: Romain Vimont <rom@rom1v.com>
Date: Tue, 16 Feb 2021 23:29:27 +0100
Subject: [PATCH] screen_on_new_frame

---
 app/src/scrcpy.c |  5 +----
 app/src/screen.c | 12 ++++++++++++
 app/src/screen.h |  5 +++++
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/app/src/scrcpy.c b/app/src/scrcpy.c
index ea8002b8..e0447ce1 100644
--- a/app/src/scrcpy.c
+++ b/app/src/scrcpy.c
@@ -271,10 +271,7 @@ decoder_on_new_frame(struct decoder *decoder, void *userdata) {
     (void) decoder;
     (void) userdata;
 
-    static SDL_Event new_frame_event = {
-        .type = EVENT_NEW_FRAME,
-    };
-    SDL_PushEvent(&new_frame_event);
+    screen_on_new_frame(&screen);
 }
 
 bool
diff --git a/app/src/screen.c b/app/src/screen.c
index 1174593d..2ca35d44 100644
--- a/app/src/screen.c
+++ b/app/src/screen.c
@@ -647,3 +647,15 @@ screen_hidpi_scale_coords(struct screen *screen, int32_t *x, int32_t *y) {
     *x = (int64_t) *x * dw / ww;
     *y = (int64_t) *y * dh / wh;
 }
+
+void
+screen_on_new_frame(struct screen *screen) {
+    (void) screen;
+
+    static SDL_Event new_frame_event = {
+        .type = EVENT_NEW_FRAME,
+    };
+
+    // Post the event on the UI thread
+    SDL_PushEvent(&new_frame_event);
+}
diff --git a/app/src/screen.h b/app/src/screen.h
index 171717ab..0230b819 100644
--- a/app/src/screen.h
+++ b/app/src/screen.h
@@ -137,4 +137,9 @@ screen_convert_drawable_to_frame_coords(struct screen *screen,
 void
 screen_hidpi_scale_coords(struct screen *screen, int32_t *x, int32_t *y);
 
+// Notify the screen that a new frame is available in the video_buffer.
+// Called from a separate thread.
+void
+screen_on_new_frame(struct screen *screen);
+
 #endif